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Appendix A Programming the Watchdog Timer 103
How to set the watchdog timer
1. Set register 30h of logical device 7 to 1 to activate the timer.
2. Write the desired counter value to register F2h of logical deivice
8.
Logical Device 7 : Register number 30h (CR30)
00h : timer inactive
01h : timer active
Logicel Device 8 : Register number F2h (CRF2)
00h : Time-out Disable
01h : Time-out occurs after 32 seconds
02h : Time-out occurs after 1 minute 32 seconds
03h : Time-out occurs after 2 minute 32 seconds
04h : Time-out occurs after 3 minute 32 seconds
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FFh : Time-out occurs after 254 minutes 32 seconds
Содержание PCM-6890B
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